I used Google Translator (alas I don't speak french) and it says (main part):

This year 2011 is to mark a milestone: indeed, for
first time in tournament history to the door of Auteuil, a player
will be required to wear co-branded adidas Roland Garros on the courts.
And that player is Jo Tsonga, one of our favorites, and one of the best, and
French hopes for the tournament!